What is the phrase we say for putting someone in prison / gaol?
To be put behind bars.
What is this man doing?
He's vandalising a shop.
Who is this woman.
She's a witness.
Who are these people?
They are policewomen.
What is happening here?
They are looking at forensic evidence.
What has happened here?
They have dug a tunnel.
Who is this and what is around his wrists?
A criminal in handcuffs.
What is happening here?
The policeman is making an arrest.
